function broadcast(componentName, eventName, params) {
  this.$children.forEach((child) => {
    var name = child.$option.componentName;

    if (name === componentName) {
      child.$emit.apply(child, [eventName].concat(params));
    } else {
      broadcast.apply(child, [componentName, eventName].concat([params]));
    }
  });
}

export default{
  methods:{
    dispatch(componentName, eventName, params){
      var parent = this.$parent || this.$root;
      var name = parent.$options.componentName;

      while(parent && (!name || name !== componentName)) {
        parent = parent.$parent;
        if(parent){
          name = parent.$options.componentName
        }
      }
      if(parent){
        parent.$emit.apply(parent,[eventName].concat(params));
      }
    },
    broadcast(componentName, eventName, params){
      broadcast.call(this,componentName,eventName,params)
    }
  }
}
